Grain-separator



No. 626,8I8. Patented lune I3, I899.

J. H. STURGEON.

GRA IN SEPARATOR.

{Application filed July 26, 1898.)

(No Model.) 2 Sheets-Sheet l.

uzul'oz Patented June l3,l899.

No. 626,8l8.

-L H.8TURGEON. GRAIN SEPARATOR.

(Application filed July 26, 1898.) (No Model.) 2 Sheets$heet 2.

Sumnkoz ms Mmms PETERS 00.. PHQYOUTHQ. wnsumcmu, n. c

UNITED STATES PATENT Orricn.

JOHN H. STURGEON, OF WINSLOW, INDIANA.

GRAIN-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 626,818, dated June 13,1899.

Application filed July 26, 1898.

To all whom, it may concern.-

Be it known that 1, JOHN H. SrUReEoN, a citizen of the United States,residing at "Winslow, in the county of Pike and State of Indiana, haveinvented certain new and useful Improvements in Grain-Separators, ofwhich the following is a specification.

This invention relates to certain new and useful improvements inseparators for grain and other material, having for its object toprovide apparatus whereby the separation of grain may be quickly anduniformly effected; and with this object in view the invention consistsin the novel construction, combination, and arrangement of the partshereinafter more particularly described.

In the accompanying drawings, forming a part of this specification, andin whichlike letters and numerals of reference indicate correspondingparts, Figure 1 is a side elevation of a separator embodying theinvention. Fig. 2 is a vertical longitudinal sectional view thereof.Fig. 3 is a transverse sectional view of the same, and Fig. 4 is adetail view of a portion of the screen-cylinder.

Referring more particularly to the drawings, A designates the supportingframe, which may be constructed in any suitable manner, but preferably,as shown, comprises oppositely-inclined bars 1 at each end, the saidbars being crossed and secured together at their crossing-points.Securing the corresponding end bars 1 together at opposite ends of theframe are a series of parallel longitudinal side bars 2, so arranged inconnection -with the end bars as to form a cradle, into which isreceived the casing B of the separator. This casing may be formed of anysuitable material or combination of materials and is disposedhorizontally within the frame, with the outer faces of its walls inclose contact with the inner faces of the end framebars 1 and side bars2. In order to prevent longitudinal movement of the casing B within itsframe, the bottom 3 thereof projects laterally slightly beyond its sidesand is provided near opposite ends and upon opposite sides of the casingwith recesses 4 for reception of the end bars 1. The casing B is looselymounted within the cradle of the frame A in order that it may be readilyremoved therefrom for the purpose of cleaning, and to Serial No.686,935. (No model.)

facilitate ready access to the interior of the said casing it isprovided with a removable top 5. In its bottom the casing B is formedwith two or more chutes 6, each having downwardly-converging side wallswhich terminate in discharge-openings 7.

Mounted to rotate within the casing out of contact with the wallsthereof is a screen-cylinder 0, having a central shaft 8, the oppositeends of which are so, journaled in the end walls of the casing B as topermit the cylinder to be readily removed from and inserted into thecasing. Upon the exterior of the cylinder are a series of separatedparallel longi-- tudinal strips 9, from which at separated pointsradiate to the shaft 8 series of arms 10, which support the shaft inposition. Secured to the interior faces of the strips 9 are two or moresections of wire-cloth 10 of different mesh, the cloth with the smallestmesh being arranged at the head or forward end of the screen-cylinderand the mesh of each succeeding section being a trifle larger than thatof the preceding section. The longitudinal wires of each section aresecured at their ends in any suitable manner to the end circumferentialwires.

Heretofore it has been the common practice to employ screen-cylinderswith wire cloth or gauze having rectangular openings. In the presentconstruction, however, it is preferred to use cloth in which theopenings are elon gated in the direction of the length of the cylinder,as it has been found in practice that when the openings are thus formedthe grain or other material is much more effectively and uniformlyseparated, especially when large quantities thereof are run through themachine in a short space of time. In order to further facilitate theuniform separation of the grain, &c., the edges of adjacent sections ofwire-cloth are overlapped for a short distance to bring the longitudinalwires of one section intermediate the corresponding wires of the nextsection, thereby forming practically a closed annular surfaceintermediate each two sections of the cylinder 0. These closed surfacesare arranged immediately above the meeting points of the side walls ofadjacent chutes 6 and serve to prevent grain which properly belongs inone chute from dropping upon the narrow surface ICO separating thechutes and being deflected thereby into the wrong chute.

At its forward end the screen-cylinder O is provided with an interiorring 12, between the outer surface of which and the inner faces of thestrips 9 the wire-cloth 10 is clamped. Surrounding the said ring andclosely conforming to the contour thereof and of the 10ngitudinal stripsis a binding-band 13 of metal, the said ring and binding-band serving toimpart stability and rigidity to the screen-cylinder throughout itslength, and being arranged at the forward end of the cylinder and onlyone of such rings 12 being employed the inner surface of the cylinder 0is practically unbroken throughout its length to the rear end thereof.

Extending into the open forward end of the screen-cylinder is chute 15,leading from a hopper 16 at the front end of the casing B, and aslide-Valve 17 is employed to control the flow of grain from the hopperto the chute. The rear end of the screen-cylinder extends into closeproximity to the rear end wall of the casing and through said end therefuse material within the cylinder is discharged through an opening 18in the said end wall, said opening being preferably controlled by meansof a sliding gate 19.

Any convenient means may be employed forrotating the screen-cylinder.Thus, as

shown, one end of the shaft 8 is projected beyond the end of the casingl3 and receives a It will be obvious, howcrank-handle 20.

ever, that a gear or band Wheel may be secured upon the shaft androtation imparted thereto from any suitable source of power.

While the screen-cylinder is shown as horizontally arranged, and it ispreferred to so mount it, obviously it might be inclined at any desiredangle, according as varying conditions demand.

Without limiting myself to the exact construction and arrangement of theparts shown and described, what I claim is In a separator, thecombination with a casing provided in its bottom with two or morechutes, of a screen-cylinder within the casing having one or morecovering-sections of Wirecloth of different mesh, one section beingarranged above each chute of the casing and the different sections beingoverlapped at their opposing edges to bring the longitudinal wires ofone section intermediate the corresponding wires of the next section toform annular close-mesh sections in the plane of the partition betweenadjacent chutes, means for rotating the screen-cylinder and a feedhoppercommunicating with the interior of the cylinder, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

JOHN H. S'IURGEON.

Witnesses:

ABIJAH BEATTY, DAVID BEASLY.

